Methyl p-tolyl sulfide
Methyl p-tolyl sulfide (CAS: 623-13-2), with the molecular formula CH3C6H4SCH3 and a molecular weight of 138.23 g/mol, is an organic sulfur compound. It serves as a valuable building block and intermediate in organic synthesis. This compound is primarily utilised in chemical research and development for the creation of more complex molecules, particularly within the fields of materials science and medicinal chemistry.
- IUPAC
- 4-(Methylthio)toluene
- Synonyms
- 4-(Methylthio)toluene

Organic Synthesis Intermediate
Methyl p-tolyl sulfide is employed as a key intermediate in the synthesis of various organic compounds. Its sulfur atom and aromatic ring provide reactive sites for further chemical transformations, enabling the construction of complex molecular architectures.
Building Block for Specialty Chemicals
This compound functions as a versatile building block for the development of specialty chemicals. It is utilised in research laboratories for exploring novel synthetic pathways and creating compounds with specific functional properties.
Research and Development
Utilized in academic and industrial R&D settings, Methyl p-tolyl sulfide aids in the exploration of new chemical reactions and the discovery of novel compounds with potential applications in diverse fields.
| Molecular weight | 138.23 |
|---|---|
| Linear formula | CH3C6H4SCH3 |
| Assay | 99% |
| Boiling point | 52-54 °C/1 mmHg(lit.) |
| Density | 1.027 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.573(lit.) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 85 °C / 185 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Methyl p-tolyl sulfide used for?
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Methyl p-tolyl sulfide is primarily used as a building block and intermediate in organic synthesis, particularly in chemical research and development for creating more complex molecules.
What are the CAS number and molecular formula for Methyl p-tolyl sulfide?
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The CAS number is 623-13-2 and the molecular formula is CH3C6H4SCH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methyl p-tolyl sulfide with a purity of 99%. This product is intended for technical and research purposes; TSS does not represent it as USP, BP, or EP grade.
How should Methyl p-tolyl sulfide be handled safely?
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Methyl p-tolyl sulfide is classified as harmful if swallowed (H302). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator. Ensure adequate ventilation.
How is Methyl p-tolyl sulfide shipped and exported?
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Methyl p-tolyl sulfide is shipped and exported according to relevant transport regulations, including UN 3334 classification. TSS ensures compliance with all international shipping standards for chemical products.
How can I request a sample or quote for Methyl p-tolyl sulfide?
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To request a sample or quote, please contact our sales team via the website or by calling our customer service line. Please provide your contact details and the quantity required.
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